Liquid jet apparatus, printing apparatus, and method of adjusting phase of drive pulse

Abstract

A liquid jet apparatus including a plurality of nozzles provided to a liquid jet head, an actuator corresponding to each of the nozzles, and drive unit that applies a drive pulse to each of the actuators, wherein the drive unit includes correction value storing unit that stores a drive pulse application timing correction value corresponding to the number of actuators to be driven at the same time, and drive pulse application timing correction unit that corrects the drive pulse application timing using the drive pulse application timing correction value stored in the correction value storing unit.

1. A liquid jet apparatus comprising:
 a plurality of nozzles associated with a liquid jet head; 
 a plurality of actuators corresponding to the nozzles; and 
 a drive unit configured to apply a drive pulse to each of the plurality of actuators, wherein, the drive unit compensates for electrical interference generated by more than one of the plurality of actuators being driven at the same time by modifying the timing that the drive pulse is sent to each of the plurality of actuators based on the number of the plurality of actuators being driven at the same time. 
 
     
     
       2. The liquid jet apparatus according to  claim 1 , wherein the drive unit compensates for electrical interference by adjusting the timing of the application of the drive pulse based on the number of the plurality of actuators to be driven at the same time. 
     
     
       3. The liquid jet apparatus according to  claim 1 , wherein the drive unit compensates for electrical interference by:
 storing a correction value that corresponds to the number of the actuators to be driven at the same time; 
 based on the stored correction value, adjusting the timing of the application of the drive pulse to each of the actuators to be driven at the same time. 
 
     
     
       4. A method of driving a plurality of nozzles associated with a plurality of nozzles of a liquid jet head of a liquid jet apparatus, comprising:
 determining a number of the plurality of actuators that are to be driven at the same time; 
 generating a drive pulse that is corrected to compensate for electrical interference generated by multiple actuators being driven at the same time by modifying the timing that the drive pulse is sent to each of the plurality of actuators based on the number of the plurality of actuators being driven at the same time; and 
 applying the corrected drive pulse to the actuators that are to be driven at the same time, such that the actuators cause the nozzles to eject liquid. 
 
     
     
       5. The method according to  claim 4 , further comprising storing a correction value that corresponds to the number of the actuators to be driven at the same time. 
     
     
       6. The method according to  claim 5 , wherein generating the drive pulse that is corrected to compensate for electrical interference comprises, based on the stored correction value, adjusting the timing of the application of the drive pulse to each of the actuators to be driven at the same time. 
     
     
       7. The method according to  claim 4 , wherein the drive pulse is generated by a drive unit of the printing apparatus.